Prototype4
tgtakaoka
The 3 chips HD6309E SBC implementation
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Part Number
Description
ATmega4809-P
HM628128DLP-5
HD63C09E
ATtiny412-SS
20MHz, 4kB Flash, 256B SRAM, 128B EEPROM, SOIC-8
CD74HCT30
CD74HCT688
Prototype4 schematic
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Prototype4 board layout
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